tdottrucker Posted August 31, 2021 Report Share Posted August 31, 2021 I wanted to ask if anyone here has left a small size (10-12 cans) 12V cooler plugged in overnight and not drain the battery? We are going to be camping and will need to have one plugged in overnights. If reference is needed, it is the following cooler: https://www.raneystruckparts.com/roadpro-koolatron-12-volt-18-quart-thermo-electric-cooler-and-warmer/?gclid=Cj0KCQjwg7KJBhDyARIsAHrAXaGy_wXJoHLc0xAGQALfl09ERj5_GsOcI-E2wqUY2--12bk9dsa1o0gaAhUwEALw_wcB Please move if posted in the wrong section Quote Link to comment Share on other sites More sharing options...
John/Horace Posted August 31, 2021 Report Share Posted August 31, 2021 (edited) Power draw 4 amps, is a lot. Restart half way through the night and run car for 10 mins, or it will be flat by morning IMO. Our batteries new I think are 65 amp hours full. . But capacity drops over time with some batteries useless after 3 years. Shouldn't drop battery below 12 volts or you start to damage the plates. So usable energy is no where near near 65 amps. Journey are sensitive to low batteries; push button start is a one shot relay system; not like the old style slow crank holding key on set ups. Could plug in a large lithium booster pack (10-12k milli amps) on vehicle for the night, another option. Running regular lead batteries flat and boosting is hard on them, I try to avoid it when ever possible. Deep cycle batteries are designed for this type of use. Let us know how it works out. I love learning from other people’s mistakes. ? Edited August 31, 2021 by John/Horace Summer Solstice and jkeaton 2 Quote Link to comment Share on other sites More sharing options...
tdottrucker Posted August 31, 2021 Author Report Share Posted August 31, 2021 lol. I'm hoping not to create any problems. I'm looking at this right now. 1200 Amp would at least give me capacity, and possibly enough run time overnight without needing to be plugged into the car as well. Worst case, I could plug this into the car then plug the Cooler into this device. MotoMaster 1200A Lithium Jump Starter & Power Bank Canadian Tire John/Horace 1 Quote Link to comment Share on other sites More sharing options...
Armando G Posted August 31, 2021 Report Share Posted August 31, 2021 Whatever happened to a bag of ice? Two bags are cheaper than a new battery... just saying ? OhareFred, Summer Solstice and 5rebel9 2 1 Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted September 1, 2021 Report Share Posted September 1, 2021 20 minutes ago, Armando G said: Whatever happened to a bag of ice? Two bags are cheaper than a new battery... just saying ? LOL ... I thought the same thing when I read this this morning. Quote Link to comment Share on other sites More sharing options...
jkeaton Posted September 1, 2021 Report Share Posted September 1, 2021 12 hours ago, Armando G said: Whatever happened to a bag of ice? Two bags are cheaper than a new battery... just saying ? Bags of ice are so yesterday...... Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted September 1, 2021 Report Share Posted September 1, 2021 1 hour ago, jkeaton said: Bags of ice are so yesterday...... And why we now have vehicles that draw power even when shut down that overnight low draw items like electric coolers will kill the battery or have unibody construction that even towing a small camper is not recommended. YES give me YESTERDAY! jkeaton and John/Horace 1 1 Quote Link to comment Share on other sites More sharing options...
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